sql server datediff
时间: 2023-07-16 21:10:15 浏览: 104
SQL Server 中的 DATEDIFF 函数用于计算两个日期之间的时间差,其语法如下:
DATEDIFF (datepart, startdate, enddate)
datepart:表示要计算的时间单位,如年、月、日、小时等。
startdate:表示开始日期。
enddate:表示结束日期。
例如,要计算两个日期之间的天数差,可以使用如下语句:
DATEDIFF(day, '2022-01-01', '2022-01-10')
结果为 9。
相关问题
sqlserver datediff
DATEDIFF函数是SQL Server中的一个日期函数,用于计算两个日期之间的时间差。它的语法如下:
DATEDIFF(datepart,startdate,enddate)
其中,datepart是指要计算的时间单位,可以是year、quarter、month、day、week、hour、minute、second等;startdate和enddate是要计算时间差的两个日期。函数返回的是两个日期之间的时间差,单位是指定的时间单位。
sqlserver datediff 函数
SQL Server DATEDIFF function is used to calculate the difference between two dates. The syntax of the DATEDIFF function is as follows:
DATEDIFF (datepart, startdate, enddate)
Where datepart is the part of the date you want to calculate the difference for (e.g. year, month, day), startdate is the starting date, and enddate is the ending date.
For example, to calculate the number of days between two dates, you can use the following SQL statement:
SELECT DATEDIFF(day, '2021-01-01', '2021-01-31')
This will return the result as 30, which is the number of days between January 1st and January 31st, 2021.
阅读全文